[sqlclient] Enable collecting server.* attributes by default

[alanwest]

Fixes #2235

Confirmed with @lmolkova and @trask in the DB conventions SIG that the server.address/server.port attributes need to be collected by default.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 91.36%. Comparing base (71655ce) to head (40305e9).
Report is 549 commits behind head on main.

Additional details and impacted files

@@             Coverage Diff             @@
##             main    #2249       +/-   ##
===========================================
+ Coverage   73.91%   91.36%   +17.44%     
===========================================
  Files         267        8      -259     
  Lines        9615      301     -9314     
===========================================
- Hits         7107      275     -6832     
+ Misses       2508       26     -2482     

Flag	Coverage Δ
unittests-Instrumentation.SqlClient	91.36% <100.00%> (?)

Flags with carried forward coverage won't be shown. Click here to find out more.

Files with missing lines	Coverage Δ
....SqlClient/SqlClientTraceInstrumentationOptions.cs	100.00% <100.00%> (ø)

... and 271 files with indirect coverage changes

[alanwest]

I guess I was a bit surprised there were no tests I needed to update. I do have some work in flight for refactoring and expanding the test coverage, so I don't want to address that in this PR.

[CodeBlanch]

LGTM